Broadcast System, Broadcast Control Apparatus, and Broadcast Method

2. The broadcast system as set forth in claim 1 , wherein said broadcast control apparatus determines service quality used in the broadcast of said programs such that the total transmission rate of programs that are broadcast is accommodated within the band that can be used for the broadcast of programs.

3. The broadcast system as set forth in claim 1 , wherein said broadcast control apparatus both selects programs that are to be broadcast from among programs that can be broadcast and determines service quality that is used in the broadcast of said programs that have been selected.

4. The broadcast system as set forth in claim 1 , wherein said service quality is prescribed by either the resolution of images or the number of frames per unit time, or by both the resolution of images and the number of frames per unit time.

5. The broadcast system as set forth in claim 1 , wherein said broadcast apparatus transmits data of the programs to said communication access network at a service quality that is determined based on said scores realized by said broadcast control apparatus.

6. The broadcast system as set forth in claim 1 , wherein said communication access network apparatus causes data of said programs that were transmitted from said broadcast apparatus to conform to the service quality that was determined based on said scores by said broadcast control apparatus and broadcasts by said communication channels.

7. The broadcast system as set forth in claim 1 , wherein said broadcast control apparatus, when the score of a particular program surpasses a value obtained by adding a predetermined protection value to the score of another program that is being broadcast at a higher service quality than the service quality of said program, determines to change the service quality of said program and said other program.

8. The broadcast system as set forth in claim 1 , wherein said broadcast control apparatus, when a state in which the result of comparison between the score of a program that is being broadcast at a particular service quality and the score of another program that is being broadcast at a service quality that differs from said service quality satisfies predetermined conditions continues for at least a predetermined protection time interval, changes the service quality of said program and said other program.

11. The broadcast method as set forth in claim 10 , wherein service quality used in the broadcast of each of said programs is determined such that said service quality increases with higher said scores.

12. The broadcast system as set forth in claim 1 , wherein said broadcast control apparatus communicates to said terminals and displays on said terminals scores of each of programs that were measured as report information.

13. The broadcast control apparatus as set forth in claim 9 , further comprising notification unit that communicates to said terminals and displays on said terminals scores of each of the programs that were measured as report information.

14. The broadcast method as set forth in claim 10 , wherein scores of each of the programs that were measured are communicated to said terminals and displayed on said terminals as report information.

15. The broadcast system as set forth in claim 1 , wherein said terminals can move among areas in which said one or more of said programs are being broadcast without having reception thereof interrupted.

16. The broadcast control apparatus as set forth in claim 9 , wherein said terminals can move among areas in which said one or more of said programs are being broadcast without having reception thereof interrupted.

17. The broadcast method as set forth in claim 10 , wherein said terminals can move among areas in which said one or more of said programs are being broadcast without having reception thereof interrupted.